<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      for (let i = 0; i < 10000; i++) {
        let div = document.createElement("div");
        div.innerHTML = i;
        document.body.appendChild(div);
      }

      console.log(document.querySelectorAll("body"));
    </script>
  </body>
</html>
